Customers choose macarons at a macaron shop Pierre Herme in Paris, France, Aug. 30, 2019. Macaron is a sweet meringue-based confection made with egg white, icing sugar, almond powder and food clothing. It used to be an aristocratic food and a symbol of luxury in history. As a symbol of French dessert, Macaron is popular with people all over the world nowadays. (Xinhua/Gao Jing)